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Turning 60

Strange how time goes by. And strange I would say that, since I know time does not flow, it is...

On The Illusion Of Time And The Strange Economy Of Existence

I recently listened again to Richard Feynman explaining why the flowing of time is probably an...

RIP - Hans Jensen

Today I was saddened to hear of the passing of Hans Jensen, a physicist and former colleague in...

2026 Plans

This year opened in slow motion for me, at least work-wise. I have been on parental leave since...

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Tommaso DorigoRSS Feed of this column.

Tommaso Dorigo is an experimental particle physicist, who works for the INFN at the University of Padova, and collaborates with the CMS and the SWGO experiments. He is the president of the Read More »

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The Carnival of Physics is an event organized by Gravità Zero and Gravedad Cero, two sites of scientific outreach in Italy and Spain. I participate with three recent articles which are published on their site. Most other contributions are in Italian and Spanish, but you might still find it interesting to visit the two sites (which feature different contributions). Among the sponsors of this enterprise are WIRED, El Pais, Publico, and La Stampa.




Last night the Large Hadron Collider at CERN has circulated the highest-energy beams of particles ever produced. The beam energy has been brought up from the injection energy of 450 GeV to 1.18 TeV, thus outperforming by 20% the flattop beam energy of the Tevatron collider, Fermilab's proton-antiproton collider, which operates at a beam energy of 980 GeV.
Tomorrow morning Venice will sink under a maximum tide predicted to reach 1.30 meters above average sea level. The event will occur at 8.35AM, a time when Venetian residents are in the streets trying to bring children to school or to reach their workplace. You can see the predicted evolution of the tide in the graph below, where the red curve shows the time variation of the season's average, and the blue one the actual prediction for tomorrow. The peak of 130 cm above average sea level is predicted to occur at 8.35AM -which is 2.35AM in New York, or 5.35PM in Tokyo.
"There is no such thing as a theoretical uncertainty. All there is is theoretical stupidity"

Guido Altarelli
This is the second part of a two-part collection of tips for particle physics graduate students. The first part is here.

Three: be a fool today if you want to be a guru tomorrow



The third advice I have in store for Jane is maybe the toughest to follow, at least at first. But I do believe it is of critical importance for her to grow, become knowledgeable, and distinguish herself from the rest of the pack.
My blog is not a place for hot-off-the-press news - in it you are more likely to find discussions on material well digested and thought over. Nevertheless, I do not have the guts to sit on today's news. The Large Hadron Collider at CERN has produced its first high-energy proton-proton collisions, in the core of the experiments instrumenting its underground caverns.

It has been a long way since the first design of this extraordinary machine. I was reminded of just how much effort the construction and commissioning took by a slide shown by Ives Sirois at a workshop in Turin today: it is a schedule of the construction of the LHC dated 1989!